'deleted' option is added and fixed it's default value to '0'

I tried the class, and it brought all deleted records too, because default value was 'FALSE' which is incorrect one according to some of [SugarCRM code examples](http://support.sugarcrm.com/04_Find_Answers/03_Developers/100Web_Services/100REST_API/100Examples/100PHP/Retrieving_a_List_of_Records_With_Related_Info_-_REST_and_PHP)

Now you can also pass 0 or 1 as a $options['deleted']

PS. Also some trailing spaces were removed by my editor, hope this doesn't bother you.

Thank you for the wrapper!